# CVE-2011-4062: Memory corruption in n/a

> Local attackers can trigger a kernel panic or gain privileges via a buffer overflow in the FreeBSD kernel's bind system call handling.

- **Severity:** High 7.2 (`AV:L/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Oct 2011
- **Updated:** 6 Aug 2024
- **Also known as:** CVE-2011-3633, DSA-2325-1, GHSA-4jfx-pxp6-7456

## What is CVE-2011-4062?

CVE-2011-4062 is a high-severity memory corruption vulnerability in Freebsd Freebsd, published on 18 Oct 2011. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Buffer overflow in the kernel in FreeBSD 7.3 through 9.0-RC1 allows local users to cause a denial of service (panic) or possibly gain privileges via a bind system call with a long pathname for a UNIX socket.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2011-4062?

It affects 1 product.


Products: Freebsd Freebsd.

## How do I fix CVE-2011-4062?

Apply the vendor's patch.

## Is CVE-2011-4062 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-4062 exists.

Public exploit code:

- FreeBSD - UIPC socket heap Overflow (PoC) (exploitdb)

## Other vulnerabilities in Freebsd Freebsd

- [CVE-2018-17160](https://insights.sbomify.com/CVE-2018-17160/): Memory corruption in FreeBSD (critical 10.0)
- [CVE-2014-3954](https://insights.sbomify.com/CVE-2014-3954/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-4304](https://insights.sbomify.com/CVE-2006-4304/): Memory corruption in n/a (critical 10.0)
- [CVE-2006-0226](https://insights.sbomify.com/CVE-2006-0226/): Integer overflow in n/a (critical 10.0)
- [CVE-2004-0002](https://insights.sbomify.com/CVE-2004-0002/): Denial of service in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-4062 and fix it if it is affected.

What it is: CVE-2011-4062 is a high-severity memory corruption vulnerability in Freebsd Freebsd, published on 18 Oct 2011. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-4062 exists.

Affected product: Freebsd Freebsd. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2011-4062/ (Markdown: https://insights.sbomify.com/CVE-2011-4062/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-4062
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-4062
- OSV: https://osv.dev/vulnerability/CVE-2011-4062

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-4062/
Summaries are generated and may contain mistakes; the official description above is the record.